Trolley.



H. F. KUNIE$KI & M. SWIEGIGKI.

TBOLLEY.

APPLICATION FILED SEPT. 16, 1911.

Patented Feb. 20, 1912.

P r 1 74 6 MLCJKZ- AT IORNEYS non.

0F PHILADELPHIA, PENNSYLVANIA.

HENRY F. KUNIESKI AND MICHAEL SWIEC-ICKI,

TROLLEY.

Specification of Letters Patent. Application filed September 16, 1911.

1,618,198. Patented Feb. 20,1912.

Serial No.. 649,666.

To all whom it may concern:

Be it known that we, HENRY F. Kunmsxr and MICHAEL SWIEOIOKI, subjects ofthe Emperor of Austria-Hungary, residing at Philadelphia, in the countyof Philadelphia and State of Pennsylvania, have invente certain new anduseful Improvements in Trolleys, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to trolleys, and the objects of our invention areto furnish a trolley harp with positive and reliable means, in a manneras will be hereinafter set forth, for retaining the trolley wheel of theharp in engagement with a trolley wire, and to provide yieldable meansof the above type that will permit of the trolley wheel being easilyremoved from a wire.

Further objects of our invention are to provide a trolley attachmentthat can be used in connection with the present type of trolley harp,without interfering with trolley hangers, trolley frogs and the overheadconstruction of an electric railway, and to accomplish the above resultsby a mechanical construction that is inexpensive to manu- Revolublymounted upon the bolt 5 is a trolley wheel 10 of a conventional formadapted to travel against a trolley wire, and movably mounted upon saidbolt, between the ends of the hub 11 of the wheel 10 and the arms 3 arevertical guards 12. guards have openings 13 providing clearance for thebolt 5, and the inner faces of said guards have annular recesses 14providing clearance for the ends of the hub 11 of the wheel 10. Theouter faces of the guards 12 have annular recesses 15 confrontingsimilar recesses 16 in the arms 3. tending into these recesses are theend convolutions of coiled expansion springs 17 that encircle the bolt5, between the guards 12 and the arms 8. These springs are adapted tonormally retain the guards in engagement with the ends of the hub 15.

The upper ends of the guards are enlarged or flared, as at 18 with theenlarged ends thereof cut away, as at 19 to provide clearance for therim of the wheel 10. The upper ends of the guards extend over the rim ofthe wheel 10 into proximity to each other and prevent the trolley wirefrom riding out of the groove of the wheel 10.

facture, durable and highly eflicient for the The lower ends of theguards 12 have the purposes for which it is intended. inner facesthereof provi led with enlarge- With the above and other objects inview, ments 20 and 21, the enlargement 21 having the invention residesin the novel construction, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference will now be had to the drawing, wherein Figure 1 is a sideelevation of a trolley in accordance with this invention, Fig. 2 is avertical c ross sectional view of the same, and Fig. 3 is a sideelevation of a detached guard adapted to form part of the trolleyattachment.

The reference numeral 1 denotes a trolley pole having the upper endthereof enlarged, as at 2 and bifurcated or slotted to provideoppositely disposed arms 3. These arms have alining openings 4. for ajournal pin or bolt 5. The pin 5 has a head 6 and a rectangular portion7 at one end thereof, said rectangular portion engaging in one of thearms 3 to prevent the bolt from rotating in said arms. The opposite endof the bolt is threaded, as at 8 and provided with a nut 9 or otherfastening means adapted to retain the bolt 5 in engagement with saidarms.

dowel ins 22 extending into sockets 23 provided therefor in theenlargement 20. The enlargements 20 are normally retained in engagementwith each other by the coiled spring 17 consequently the guards arenormally maintained in a vertical position with the upper inner bentedges thereof directly over the trolley wire against which the wheel 10is adapted to travel.

The enlarged lower portion of the guards provide weighted lower endswhich act to maintain the guards in a vertical position and prevent therotation of the guards upon the shaft 6.

When a trolley wire hanger, frog or other overhead construction isencountered by the guards 12, said guards recede to pass the hanger, butare immediately restored to their normal vertical position by thesprings 17. The upper ends of the guards can be easily snapped apartwhen the trolley wheel 10 is to be removed from the trolley wire, and weattach considerable importance to the lower enlarged ends of said guardsand the dowel pins thereof, as one guard cannot swing in a verticalplane relatively to the These other guard. The tension of the springs 17is suflicient to normally maintain said guards in a vertical position,against the hub of the trolley wheel and said guards cooperate informing an opening in conjunction with the trolley wheel which providesclearance for a trolley wire and prevents the wheel 10 from becomingaccidentally displaced relatively to said wire.

hat we claim is In a trolley, the combination with a pole provided witha' harp, of a bolt extending through said harp, means to prevent therotative movement of said bolt, a Wheel revolubly mounted upon saidbolt, guards loosely mounted upon said bolt between the ends of the hubof said wheel and the arms of the harp, said guards having the innerfaces thereof recessed to provide clearances for the hub of said wheel,the arms of said harp having recesses in their inner faces, coiledsprings encircling said bolt and extending into said guards and into therecesses of the arms of the harp, said springs maintaining said guardsagainst said hub, 25

said guards having the upper ends thereof flared and bent inwardly toextend over said wheel and in proximity to each other, weightedenlargements carried by the lower ends of said guards therebymaintaining 30 these latter normally in a vertical position, and dowelpins carried by one of said enlargements and extending into the other ofsaid enlargements thereby preventing the vertical movement of one of theguards with 35 respect to the other.

In testimony whereof We aiiix our signatures in the presence of twoWitnesses.

Washington, D. G.

